|Microsoft DirectX 9.0|
The SendRepaint method sends a repaint event to the filter graph manager.
This method sends an EC_REPAINT event to the filter graph manager if the following conditions are true:
Depending on the state of the graph, the EC_REPAINT event can cause the upstream filter to re-send a sample; the filter graph to seek to its current location; or the filter graph manager to pause momentarily. (See EC_REPAINT.) This event is potentially inefficient, so it should be used sparingly. However, video renderers sometimes need to refresh the display.